m-a is a user on vocalodon.net. You can follow them or interact with them if you have an account anywhere in the fediverse.
m-a @m_a

m-aさんのラスボス適性度は【120】
ラスボスを笑いながら葬るタイプの裏ボスです
shindanmaker.com/808745

……ふっ