My Love Story with Yamada-kun at Lv999 manga volume 3 features story and art by Mashiro.

Akane’s feelings for Yamada continue to grow as he proves to be a considerate and reliable guy on and offline, but she’s starting to overthink everything she does around him.

When Akane and the guild members attend a cultural festival at Yamada’s school, all the students think Akane is Yamada’s girlfriend, which leads to an embarrassing misunderstanding. Confusing matters, Yamada rushes to Akane’s aid when she collapses with a fever. Is he just being considerate, as always, or could this be a sign of something more?