diablo_(isekai_maou)
The main protagonist of Isekai Maou to Shoukan Shoujo no Dorei Majutsu.
In his previous life, he is known as Takuma Sakamoto, also known by his username of "[nodtext]@Diablo-13[/nodtext]". Later on, Takuma became the very character he was playing in an MMORPG named "Cross Reverie" after reincarnating in the video game's world.
Portrayed as a highly confident, insolent demon lord with charismatic aura, but in truth, is an introvert and rather nervous man.