How Not To Summon A Demon Lord Vol. 7 (Light Novel)

Takuma Sakamoto is a hikikomori gamer who never leaves his room until one day he is suddenly transported to another world that is just like his favorite MMORPG, Cross Reverie, as his character from the game, Demon Lord Diablo! Turns out he has been summoned by pantherian Rem and elf Shera who wish to make him their slave, but thanks to his passive ability “Magic Reflection,” the spell backfires and they end up his slaves instead! To compensate for his social anxiety, he decides to role-play as Diablo while using his knowledge of the game and ridiculously high stats to survive. With Rem and Shera at his side, he begins traveling and making a name for himself as the “Demon Lord from another world”!
In Vol. 7, Diablo learns that a ritual to rid Rem of the remaining fragments of Krebskulm’s soul has been passed down by the Dark Elves, and he accompanies her despite her desire to go alone. Of course, it’s because he’s worried about her, and not that in the game the Dark Elves were a race with gigantic boobs! Meanwhile, Shera learns that she must marry an elf male and become Greenwood’s new queen?!
Notice: This book is written in Japanese.