In the Case of Childhood Friends

1-3) Osananajimi no Baai
From Dear Marionette:

Second-year high-schooler Rei has had a childhood crush on Ichika for a long time. But, Rei refuses to give up their friendship… Ichika has this attitude where he’d scold himself if he ever falls in love. Just when he’s about to give up, Ichika seems to have fallen for the captain of the basketball team, Hata-senpai?! Rei wavers, and involuntarily says “I like you”…?!

4) Kimi no Tenohira ni Taiyou

5) Anata no Hada ni Fureru made
Mimiki and Shuu meet every year for a special purpose - that to uncover the secrets of the folding screen festival and more importantly, the mysterious 'white falcon'. Will they ever find it? Will their relationship ever develop?

6) Osananajimi no Baai - Otomari