Ataru Kashiwagi/Relationships

Kashiwagi Yuri
His younger sister. They live together and share a very close bond. She refused to unfollow him despite the fact that she could possibly die. Yuri didn't want to lose Ataru, since they had already lost their parents. However, Ataru, fearing for her safety, blocked her--which forced her to unfollow him.

They promised to always eat dinner together.

Kashiwagi Yuuma
His twin brother, who is presumed to have died in a car accident when they were young.

tyle="background-color: #ccc;" | Spoilers In Real account II, chapter 39, the brothers meet again... Only Yuuma (the real one) tries to kill Ataru (who was supposedly dead) with a gun. We still don't know why. This will probably be revealed in chapter 40.

Kanda Koyori
Upon meeting her, he was shocked at how much she looked like his sister, Yuri.