Yama no Susume: Omoide Present

Animes that take place in Fall/Autumn. (Hyakko doesn't, but the school uniforms the characters wear have Fall colors.)

These anime primarily focus on one or more childhood friends. The friends might have reunited after a long period of time apart, or they might be characters who start a relationship in a Romance anime. A Childhood Promise might also be involved.

Anime to relax to, *mostly* featuring Iyashikei, CGDCT, Slice of life and minimal drama

"iyashi" (癒し) means healing, and the term "iyashikei" refers to anime and manga that "heal" the audience by instilling a calming feeling or evoking emotional carthasis. Almost always, Iyashikei stories have peaceful, somewhat mundane, and nostalgic atmospheres. The settings are idyllic with little or no conflict, and the narratives focus on personal reflection, heartwarming moments, a vague sense of melancholy, and/or an appreciation for the small things in life.

CGDCT - "Cute Girls Doing Cute Things"