ข้อมูลอนิเมะพิชิตรัก พิทักษ์โลก (ฤดูกาลที่ 1)

Beginning with the original spacequake 30 years ago, the ditzy Kotori and her brother Shido are introduced as modern day residents of Japan. For the opening ceremony, Kotori and Shido make a promise to meet at a diner later that day. As school ends for Shido, a spacequake alarm sounds throughout the city for the citizens to enter shelter areas immediately. After being unable to contact his sister, Shido uses her GPS to confirm that she is still within the city according to their promise. He leaves the shelter to find her and in doing so, is outside when the spacequake occurs thus meeting his first Spirit. After the battle between the Spirit and the AST, where Shido learns that Origami is a part of the AST, Shido finds himself among the group Ratatoskr on the airship Fraxinus learning about the Spirits, his sister and the organization she is a part of.

Shido is undergoing stage two of his training which is practical application upon real humans. First is his teacher who, with the assistance of Reine and Kotori, falls head over heels in obsessive love with him. Running away from her, he bumps into Origami. He uses her for practice but ends up unintentionally starting a relationship with her. A spacequake alarm occurs and the Princess Spirit is expected to appear at Raizen High School. With the students evacuated, Shido heads inside the demolished section of the school to confront the Princess. Shido makes a connection with the Princess and names her Tohka. The AST shows up and engages Tohka from long range with their rifles to drive Tohka out but Origami sees Tohka with Shido and assumes that Tohka is holding him hostage. Since Shido is now her boyfriend, enraged, Origami flies to engage Tohka in close combat. Tohka is lost during an explosion and Origami is taken away for minor hospitalization. The next day, Tohka appears before Shido as he is rummaging through the rubble so that they may go on their date.

Shido and Tohka are on their date being overseen and supported by the Fraxinus crew. Tohka mistakingly assumes that each variety of food she is consuming at first is a "date". Not accustomed to a crowd, when the couple enter the shopping area she assumes that humanity is launching an all out attack on her. Origami observes them from the shadows while Shido and Tohka go from a high priced restaurant to south of the station where they enter an improvised shopping area. Tohka is able to indulge in the foods present to her desire but notices that Shido doesn't seem to be having fun. They move on to an arcade that is dominated by crane games which Tohka mistakingly assumes is the "mecha team's" secret base. In the course of playing for a prize that has caught Tohka's eye, Tohka inadvertantly voices her bond with Shido. They make their way to a cliff edge where Tohka finally finds out what a "date" is and sees why the "mecha people" want to kill her as she keeps destroying a world that's so kind, fun and beautiful. Meanwhile, Origami is given permission to fire but as she fires, Shido pushes Tohka out of the way and is killed instead. Enraged by Shido's death, Tohka rampages on a stunned Origami as she sees the AST as people who only want to kill and die. Before Tohka can swing the killing blow on Origami, Shido is revived with his wounds completely healed and falls from the sky towards Tohka. To prevent the city from being destroyed by a critical state Halvanhelev, Tohka kisses Shido while they glide down to the cliffedge as Tohka's Astral Dress disappears. Her last request is that Shido take her on a date again.

Shido meets Yoshino for the first time while running through a shrine on a rainy, ill-forecasted day. Believing her to be just a girl, he goes on about his way. At school, Tohka has made cookies and competes with Origami for Shido's attention. Arriving home, Shido learns that Tohka will be living in his house since he has sealed her powers. Kotori explains that it is also training as Shido still has to assist in sealing more spirits. Later, as a spacequake alarm goes off during school, Shido heads out to find it is Yoshino that is the cause. Tohka is left in the shelter while Shido goes out to meet Yoshino only to have Tohka follow him and witness the two accidentally having kissed. Tohka retrieves her powers from Shido but only to provoke Yoshino who attacks while leaving. Utilizing her angel Zadkiel, Yoshino is also able to escape from the AST nearby while Origami eyes Yoshinon, Yoshino's puppet.

Tohka is avoiding Shido due to her feelings about what happened between him and Yoshino. She talks with Reine and receives advice and clarity about what occurred. During this time, Shido helps Yoshino look for her puppet, Yoshinon. Yoshino gets hungry while searching so the two go to Shido's house to eat. It's revealed that Yoshinon is Yoshino's friend because he is strong, cool, bold, and is essentially a hero that is everything Yoshino wants to be. As Shido is getting close to Yoshino, Tohka barges is spouting an apology but misinterprets the situation. Yoshino teleports away, Tohka barges out again, but Shido learns that Yoshinon is at Origami's place. Origami forcibly makes progress between them when Shido comes over but as the conversation turns to Spirits, she gets notice of a mission. Yoshino is being targeted by the AST but Shido plans to save her with Tohka's help. As Tohka acts as a decoy, Shido makes it through Yoshino's barrier with Yoshinon to fulfill his promise. With her trust in him established, Shido seals Yoshino's powers. In the last few scenes, it is revealed that the housing for the Spirits has been completed so that Tohka and Yoshino may move in.

Tohka and Yoshino desire to visit a hot springs so Shido makes the arrangements with Kotori for them to go to Tenguu Gokuraku Hot Springs. Kyouhei attempts to convince Kotori to go but it's revealed that he has ulterior motives. His punishment is to dig a hole and refil it for the next week. Meanwhile, Kusakabe is informed that the DEM Corporation is going to send reinforcements. Kusakabe also finds out that due to the increase in the Spirit's attacks the alert level has been raised causing the group's vacation trip to be cancelled. Convinced by an AST member, Kusakabe decides that the AST will instead go to the hot springs. Origami receives a phone call from Shido where she overhears that he'll be going to the Tenguu Gokuraku Hot Springs with Tohka. While riding, Yoshino is given affectionate attention by Shido which frustrates Tohka causing her to collapse the road. This in turn disrupts the train the AST is riding on underground. The AST arrive at the surface behind Reine, Shido, Yoshino and Tohka. To prevent contact of the two groups, Ratatoskr intervenes in the path of the AST with multiple obstructions. Shido invites Kotori after seeing her but is interrupted while Kotori is informed of the situation regarding the AST. Kotori orders Date Town to enter Battle Mode Level 2 with authorization to open fire on the AST leading to a battle in which stray ordinance causes [Yoshinon] to fly off. Shido goes to find [Yoshinon] in the midst of the firefight and is almost killed by Ratatoskr's Destruct Mode. Tohka saves Shido from the attack while being overseen by Origami and fellow AST members. Everyone reaches the hot springs but due to Yoshino's actions, it has partially frozen. Kannazuki finds a hot springs that Kotori, Shido, Tohka and Yoshino end up enjoying by themselves. Mana Takamiya is then shown as arriving in Japan.

Mana is having a 10v1 practice match against Origami's unit before having introduced herself at the briefing AST's previous battle with Hermit where she unknowingly reveal's herself to be Shido's sister. Kurumi transfers into Shido's class revealing herself to be a Spirit to get closer with Shido. During her time touring the school with Shido they're followed by Origami and Tohka, but as Shido is attempting to seduce Kurumi she is also attempting to do the same to Shido. After school, Kurumi kills three humans and is confronted by Mana. Mana then runs into Shido later on that day. Taking her to his house, what Mana shares about herself leads to a quarrel between her and Kotori but ultimately leaves everyone with more questions than answers. During school the next day, Shido finds out that Kurumi was killed during her confrontation with Mana yet she appeared at school. Origami questions Kurumi in a secluded place and finds out that Kurumi is ultimately after Shido.

Shido invites Kurumi out but is forced on a polygamous date when Tohka seduces him and Origami forces her plans upon him for a date. Shido is unable to deny any of them as Tohka would be heartbroken, Origami would be suspicious and his plans to seal Kurumi depend on the date. With their dates occurring around the same time and their entertainment venues located rather close to each other, Ratatoskr assists Shido by teleporting him to each girl's location while monitoring their emotional levels. After Shido leaves Kurumi, she finds some boys shooting at a stray cat and convinces them to let her play with them. Ratatoskr loses sight of Kurumi as Origami and Tohka run into each other. After they both proclaim their trying to find Shido for their date, Origami runs off concerned there may be another. Shido returns to look for Kurumi but finds blood, body parts, and Kurumi killing a man. As she holds Shido within her clutches, Mana intervenes wearing her CR Unit.

Mana kills Kurumi and explains everything to Shido. After he is forced away, he avoids Origami and Tohka after running into them because of seeing the death Kurumi caused. Tohka finds out the reason for Shido's behavior and continues her date with him to try to cheer him up. After gaining some insight to Kurumi, the next day Shido declares to Kurumi that he'll save her. Kurumi goes to the school rooftop while encasing the school in her field to dissuade Shido from trying to save her. Mana is confronting Kotori about Ratatoskr and attempting to use it as leverage against Kotori so she'll release Shido from the potential danger he's in. While Kurumi is threatening the school and the town, Origami and Tohka are engaging in battles with other copies of Kurumi. Shido convinces Kurumi only for her to be killed by another Kurumi. As Tohka and Origami show up, it's revealed that the hands in Kurumi's shadow are actually the hands of other copies of herself. Kurumi takes everyone hostage and attempts to blow a spacequake only for it to be blown away. Kotori appears explaining the cancelling of the spacequake while in her Spirit form. She has taken back her Spirit powers from Shido temporarily to fight Kurumi.