Kubo Won't Let Me Be Invisible

First year high schooler Junta Shiraishi is a mob character who goes unnoticed even when he's standing right next to you. But his classmate, "heroine-level beauty" Kubo, always notices him and is there to tease him. Anyone can become special to someone, but it might be a little too early to call these feelings "love." Perhaps this story is still two-steps from being a romantic comedy--let's call it a sweet comedy where a background character becomes visible! Source: MANGA Plus Extra chapter from Kubo Won't Let Me Be Invisible volume 6.

Yuichi and Sumi were childhood friends who were always together. However, as they grew up, they drifted apart, but a chance encounter brings them back into each other’s lives… *Source: MANGA Plus*