Rascal Does Not Dream of Siscon Idol

Book 3 of the Seishun Buta Yarou series. SOMETIMES MORE IS JUST CRAZY! Just before summer break, Sakuta encounters Shouko Makinohara, a girl in junior high with the same name and face as his first love. Of course, that should be impossible, since she would be in college by now. Then, as if one mystery wasn't bad enough, Adolescence Syndrome strikes again. His impassive friend from the science club, Rio, discovers she has a doppelgänger. One of the Rios is forced out of her house and winds up staying at Sakuta's apartment. Definitely not the girl he expected to find himself living with...And when Mai insists she's going to sleep over, too, Sakuta's summer vacation descends into pure chaos. (Source: Yen Press)

Book 5 of the Seishun Buta Yarou series. GUESS WHO’S BACK? ​After years without contact, Sakuta has received a letter from his first love, Shouko, asking to meet at Shichirigahama Beach. Of course, now that he’s in a happy relationship, he’s not quite sure how to respond...or how to explain the situation to his girlfriend, Mai. Maybe he’ll just focus on helping his panda-loving, stay-at-home sister achieve her goal of returning to school for the time being. But this is easier said than done, given that she hasn’t left the house for two whole years... (Source: Yen Press)

Based on novel 4.