Anyway, I'm Falling in Love with You.

July 1st, 2030. Manga editor Nishino Mizuho is having the worst 27th birthday ever. The manga she's in charge of will be ending. However, when she sees a group of high school students having fun, she recalls her own adolescence. 10 years ago, during her second year of high school, Mizuho had four childhood friends who she grew up with in a residential neighborhood known as Koigahama Highlands...

Kizuki, who Mizuho saw as the crybaby little brother of the group, has lately been hitting on her. Since Mizuho believed her and Kizuki would be childhood friends forever, she is not sure how to approach this situation. He's on her mind to the point where she seems disoriented, and even says something that could potentially push Kizuki away.

In the classroom after school, Mizuho and Kizuki feel closer than ever. However, afraid of ruining the relationship they've had since they were kids, Mizuho convinces herself not to fall in love with Kizuki. With all the stress, she ends up falling ill with a fever and her friends come together to take care of her.

After spending the day at the aquarium, Kizuki asks Mizuho to cheer for him at his swim meet.

As the fireworks are set off, Mizuho rushes to look for Kizuki. At the pool she runs into...?

Mizuho has dinner at Shin's house where he tells her that he doesn't want to be "just friends."

Shugo's older brother, Togo, makes a surprise return to Koigahama Highlands.

Mizuho goes out with Shugo and Togo and strongly contemplates her feelings for Kizuki.

Shin steps up as the student council president to ensure the Ao High Festival can be held.

The group goes on a camping trip! Airu tells Shin to be more selfish and he follows his suggestion.

Mizuho starts becoming aware of Shin's intentions after he kissed her at the campsite.

Shin and Kizuki compete over Mizuho. Meanwhile she finds out the results of the Newcomers' Manga Competition.