桜小路 蓮太郎

The current principal of Seiruri Girls' Academy, and Maika's grandfather.
He became the school's principal after starting up several businesses.
He also provides support to child welfare facilities and is known as a philanthropist. He has many connections in the political and business worlds.

He is usually gentle, but he hates crookedness and has a stubborn side.
Perhaps because of this, he has many enemies.
For this reason, he keeps the fact that Maika is his granddaughter a secret from those around him.