It's a First Day of Yatomi High and there's a Boy Named Kitayo Yamuka and he's a Best Student in Yatomi High and he helped people out. Few minutes later and there's a girl named Yomika Yamato and She's a Friend of Kitayo but She can't stand her relationship and she had a huge crush in him in the first day of School.
Yomika-san can't stand Kitayo's Friendship and she wants to date him, few moments later After School Yomika-san is Day Dreaming of Kitayo's Life and she wanted to date him and few seconds later Kitayo Talks to Another Girl And Yomika-san Got Super Jealous and Few minutes later Kitayo and the Girl Left and Yomika-san Followed the Girl and then She Kidnapped her and Took her into Yomika-san House and She Locked her into the Basement.
While Yomika-san Kidnapped a One Girl and she had a helper which is her Step-sister and she secretly has a crush on Kitayo. The Next day Yomika-san Goes to School In the Next Day and there's a Missing Poster of the Girl Named Shinobi Osana which is the Student of room 1-2 and Kitayo got Worried that she went missing and Kitayo when Investigate who did it?
after the investigation of the Missing girl that Yomika-san Kidnapped her Kitayo Looks at Yomika-san Suspicious and he asked questions of her saying something serious and Yomika-san Runs Away Fast and Hides at the School Locker and Kitayo Gave up and goes to his Suspect and Yomika-san Helped Her Lies to Stop asking the kidnapped of The Missing Girl.