Banri Tada, a freshman law student at a Tokyo university ended up arriving late for his entrance ceremony. Not knowing how to get to the university, he discreetly followed two other students, and meets Mitsuo Yanagisawa, another freshman, who quickly befriended him. As they made their way to their orientation, they were greeted by a beautiful young woman, who presented Mitsuo with a bouquet of roses and then proceeded to smack him with them before leaving. Mitsuo later explained that the woman was Kouko Kaga, his childhood friend, and arranged fiancé, whom he had run away from as he does not reciprocate her feelings. After orientation, Banri and Mitsuo learn that Kouko was also a student at their university, much to Mitsuo's horror. She became acquainted with Banri during a shared class, and he soon became smitten. After class, Banri met and befriended freshman Chinami Oka and Linda, a second year student and member of the Japanese Festival Culture Research Club. On his way home, he once again runs into Kouko, who used his phone to locate Mitsuo, but upon returning it, he noticed the phone number for a hospital, causing him to remember a time when he was on a bridge and was seemingly run over by a motorbike. (Source: Wikipedia)

In a flashback, Banri overhears Linda saying she does not see him as a lover, causing him to ignore her for days. She then apologizes, saying she did not mean what she said. Banri forgives her and the spirit of Banri reminisces that was when things changed between the two and left him wondering if Linda did like him. Banri goes to check on Mitsuo after a call from Kōko, and finds him depressed due to telling Chinami to stay away from him due to rumors about her rejecting him. Deciding to cheer him up, Banri, Nijigen, and Kōko take Mitsuo to an amusement park, but when Chinami calls, Kōko also invites her, to reconcile her and Mitsuo. Kōko and Banri meet Chinami at the station, where after some banter between the two women, they get along and the group spends the whole day at the park, with Mitsuo and Chinami making up. Afterwards they all spend the night at Banri's apartment, but while everyone sleeps, Banri texts Linda, who was next door, and they meet on the balcony. After reminiscing about their old relationship, Banri asks Linda what her feelings for him were in the past, and she responds that she only saw him as a friend. While seemingly accepting this, Banri blacks out for a moment and yells his desire to go back to that time, shocking them both. Linda passes off his sudden outburst and goes back inside, but the spirit of Banri reaffirms his love and desire to be with Linda, but notes he cannot leave the current Banri without disappearing.

(Source: Wikipedia)

The accident gives Chinami a bloody lip, dents the car's bumper, and damages the guard rail. The group is escorted back to the city by the police. Upon arrival, Kōko gets slapped by her father, and the trip to Barcelona is cancelled. On the next day, Banri, Mitsuo, Chinami, and Nijigen meet with all of them taking responsibility. Banri feels the most at-fault for not keeping Kōko awake. Banri goes to Kōko's home to talk with her, finding Kōko unwilling to get out of bed. The accident reminds Kōko that she has acted immaturely despite being an adult. Banri tells Kōko that despite needing to grow up she needs to remain true to herself. Kōko tells Banri about a dream she had where she was riding in a car with Banri and at a place where they are told to stop the car, Kōko gets off and the car drives away, which makes her believe that if Banri should regain his memories that he would fall in love with Linda instead of her. Kōko's father enters her room and orders Banri to cook some ramen, while Kōko returns to bed.

(Source: Wikipedia)

After the incident at the Awa dance festival, Banri fears losing himself as his memories from before his accident return. Kōko tries to comfort Banri by having dinner with their friends at his apartment as he plans to tell them about his background and other recent troubles. Things go sour when Barni tries to invite Chinami but agreed to come nonetheless. At Banri's apartment, Chinami arrives earlier as planned as she plans to have a serious conversation with Banri before the others arrive. Chinami confesses that she felt relieved after seeing Banri being friendly with Linda as she was in love with Mitsuo and felt regret when she changed her appearance after cutting most of her hair. Following her outburst, Chinami asks Banri to film her in her dejected state. As Banri intends to tell Chinami about her past with Linda, Banri is possessed by his former self and begins calling out for Linda. He storms out his apartment but not before telling Linda and the others to not tell Kokō that his memories are returning, not realizing that Chinmai was filming the conversation. Kōko refuses to accept the ring Banri had presented to her and seemingly ended their relationship.

(Source: Wikipedia)