MTL - North American Detective: I Am Proficient In All Kinds of American IAI - Chapter 37 Upgrading to two levels in a row (seeking follow-up)

[First monster slain. Special rune obtained. Level 2 has been reached.]

This novel is also known as Eternal Strongest Sect

This is a story about developing a sect, this is a warm and joyful home.

Not only we have a funny Patriarch, there are also a group of weird disciples with very different personalities.

Come on, youngsters.

Join our sect and together we will let your dreams fly!

- Description from Novelupdates

In a world shadowed by death, the silent realms await, home to the undead and the Grim Reaper's sanctuary. As long as death's presence endures, the great Undead Queen will return.