Sena

Personality:
Sena was a national idol during his lifetime. He is so sociable and bright that even when he's a ghost, he is shining. He always tries to give the best fan service to his fans. But whenever you meet him, you notice something about him that feels strange... He and Kouyou are childhood friends and best friends.

The Young Man Who Looks Up At the Stars
There are rumors that you can meet the ghost of S=CROWN's Sena at the Seaside Park in Narumigahama!
What, haven't you heard of it? S=CROWN is a national idol group.
Well, apparently, Sena took his last breath at the open place in the Seaside Park.
Rumor has it he was found lying on his back and looked like he was looking up at the night sky.

Spoiler

His full name is Sena Mikagami.