April. A young girl stands alone, acting suspiciously in front of the entrance to a middle school... That girl is Hitori Bocchi, a new first year student at the school. And starting today, she's going to become friends with everyone in her class... hopefully!

I made my very first friend, Nako-chan, mad!! But I don't know why she's mad or how to even apologize! What do I do?! What should I do...?! That's when--!

Feeling she needs to make one more friend before summer break starts, Bocchi attempts to befriend disciplinary committee member Kako Kurai, only to fail miserably. During summer break, the girls go to the pool, where Bocchi teaches Nako how to swim. When the girls go to karaoke afterwards, Bocchi comes across Kai, who is relieved to see that Bocchi has made some friends and remembers her promise to her. On the way home, Sotoka expresses her desire to become friends with Bocchi to the others.

During cooking class, Bocchi ends up having to work with an unfamiliar group of classmates. With some help from Aru, Bocchi manages to impress her group by making them some whipped cream for their pancakes. Afterwards, Bocchi works up the courage to introduce her friends to Kako before asking her to join her group for making curry during an outdoor class. After a successful curry, Kako acknowledges Bocchi's determination to become stronger and declares herself as her rival.

Strong Bocchi powers up! Today she's Super Strong Bocchi! And Sotoka becomes Super Strong Sotoka too! What's making her stronger than usual? ...Her shoe?? Natto?!

Finally... Finally... Bocchi has a smartphone! Now Bocchi can join the smartphone tap-tap group too. Yet first she takes her friend's advice and greets her phone. So when it responds and she asks it to be her friend...?