Tamaranai no wa Koi nano ka

It's July 1, 2020. Mizuha, a high school second-year, is having the worst seventeenth birthday ever. She's missing her chance to get close to the older student she admires, and her parents didn't even remember that it's her birthday. Worst of all, there's a new and unknown infectious disease making the rounds, so all her club tournaments and school trips have been canceled. She's convinced that she'll never have the dazzling youth that she's always dreamed of... but then her childhood friend, Mizuki, suddenly declares himself a candidate to be her boyfriend. This is a school youth story about four childhood friends who grew up like family, one being the heroine, Nishino Mizuha, and the four boys she grew up with whom she sees as family.

She smiles just for me. Her name is Kachi Shirokusa and she's even an award-winning high school girl writer! And she's beautiful! I know that she's totally out of reach for me, a normal high school kid named Maru Sueharu! But I think something's there... No, there's definitely something there! Or so I thought... but Kachi has a boyfriend?! Seeing me depressed, my friend ever since we were little who's cute, cheerful, and loves to look after others, Shida Kuroha... who also apparently had no problem telling me that she likes me for some reason just suggested, "Let's get revenge."

Joji Ema goes to an all-boys school. After the school’s athletic festival, Ema’s eccentric classmate Miyoshi Hayashi starts acting bizarrely towards him. Yuichi Medaka goes to a coeducational high school. He ends up sitting behind Akira Nikaido, an unsettling student most of the school doesn’t like. Explore an omnibus of stories about what it’s like to be young.

For Makoto Hanaoka, life’s about to get more complicated. Saki Aoi, a lively girl with loads of confidence, confesses her love for Makoto one day. When he fails to reciprocate, Saki declares she will be his first love! She shares her goal with a mutual friend, Ryuuji Taiga, who also confesses his crush on Makoto. Stuck in a love triangle, Makoto must find a way to make it work and have fun.