One of the students in 3-3. She has a cheerful personality and speaks with Sakakibara in his first day in the school. She is also in the drama club, and good friends with Arita Matsuko and Izumi Akazawa. She dies in a car accident - when her family was trying to escape from Yomiyama. It was raining a lot, and soon when they were on a road that looked like highway - something hit the car's front glass, making the car drift off from the road, and falling into the nearest forest.
3-3 homeroom teacher. He kills himself in front of the class after realizing that the countermeasures to the 3-3 phenomena didn't work. He is one of the "Deaths of July".
A former Yomiyama North Middle School student from Class 3-3 of 1983. During 1983, he managed to successfully stop the calamity in class 3-3; the only recorded case of the phenomenon stopping halfway through the year. Afraid he would forget his findings, he recorded his theories and confession on an audio casette for future students to find. After graduation, he moved to Tokyo to pursue his studies. He became a banker, but dropped out after a few years, returning to Yomiyama to help with the family business. He is a regular at Inoya CafÄ—, where Tomoka Inose works. (Source: Wikipedia)
Melody is a combatant in Sandy's unit and begins the show as an immature girl who doesn't fully grasp the gravity of their situation. After taking Sandy's recorded speech to Mars and returning with reinforcements she matures into a capable woman.
Memoca is energetic and tomboyish. She enjoys teasing Dolphi and gave Wadanohara the nickname "Wadda."
Ayumu's first friend at Nishidate High School, she soon became an ex-friend due to her boyfriend Sako Katsumi spreading his lies, as well as being somewhat of a predator to Miki Hatori. She is obsessed with her boyfriend and became suicidal when they broke up, even though the breakup turned out to be short-term. Manami was once bullied when she was in Middle school because she caught Katsumi eye. (Those he rejected became jealous and took out their frustration on her) Manami comes from a line of stern authority figures who do what is right while achieving their goals through corrupt means. She's picked up on the fact that as long as you project a good image for the populace and you have the right connections; you can get away with terrible things. Her social status gives her both, and she is aware of how special she is. If the way she plans things is any indication, Manami isn't stupid. She is a very sexual girl and uses that to her advantage, getting people to do her dirty work. She is extremely manipulative and spoiled; as the daughter of a rich CEO, she uses her powers and conceit to force others to do her will, usually by blackmail or threats. Her manipulations allow her to use emotions as a weapon; she appears by turns of an innocent "good girl". People tend to take her side, even through her lies, in large parts because of how she conducts herself in confrontational situations. She turns all of Nishidate High (except Miki and Sonoda) against Ayumu for a rather extreme reason. Manami speaks in the third person, calling herself by her nickname, "Mana" (e.g. "Mana doesn't like that...").