Death March kara Hajimaru Isekai Kyusoukyoku (WN) - Book 5 - 5-15. Joining (2)

In Lv Bai's world, everyone could be picked and transported to the death battle realm, where one can draw special abilities to win the battle.However, Lv's ability pool is somehow different from that of others.[Unexpected Windfall (Gold): Immediately gain currency equivalent to ten million purchasing power in the current world.][Super-speed Regeneration (Gold): Provides extremely strong cellular level self-healing.][Strong King (Gold): Current strength doubles.]

In the foreign world, the martial artists dominate the world and the sword of the emperor controls the fate of hundreds of millions of lives! Long Yu, the number one killer on Earth, after dying, takes rebirth in this new world in an aristocratic family of martial artists but faces rejection because he is unable to practice martial arts.

- Description from Novelupdates

A strange store which sells everything suddenly appears in the town. The Owner of the store is a young man and anyone who tried to mess with him %$#@.

The products of the store are expensive, yet the queue outside the store never stops.

“So what, If you're an emperor. I'll fight to the death with you if you try to break the queue.”

A Hentai World is a Dangerous Place, Especially if Your Best Friend is a Hentai Protagonist and You Are a Trap.