When they met for the first time.

Kenta: Hi Gingka! :D

Gingka:

Gingka: I've only known Kenta for about a day but if ANYTHING happens to him, I'll kill everyone in the room and then myself!

Days later

Madoka: Kenta's trying so hard. It's adorable.

Gingka: He is my child.

Madoka: What?

Gingka: He is my child and I shall protect him.

This makes no sense