My Master Knows It All - Chapter 1790 - 399:

While I was reading the first volume of “Danmachi,” I suddenly felt my cock grow. It grew so much that it started to hurt.Suddenly, my sperm gushed out. Before I could understand what was happening, I realized I was in a familiar place.

2029 was supposed to be the year humanity moved forward.Instead, a failed military experiment tore open a gate to another dimension unleashing creatures that could shatter mountains with a single strike.From the wreckage, a new era began. Technology forged from energy crystals found beyond the gate and soldiers wielding beast infusions fuels humanity’s last defenses.Soldiers, mercenaries, and the desperate are sent to hunt the beasts... and one day, to face the terror that waits Beyond the Crimson Gate.But every step closer to the gate brings one truth into focus. What waits on the other side may not be killable.

Shinji found himself in the world of Naruto, facing the Tailed Beast Ball of the Nine-Tailed Fox.“Did I reincarnate just to die immediately?!” Shinji thought.“...”[Ding! Multiverse Role-Playing System, able to randomly draw characters/spirits/pets/trash witches from the multiverse...][Option 1: Genshin Impact World - Geo Archon - Rex Lapis - Zhongli][Option 2: One Piece World - Emperor Of the Sea - Clown King - Buggy][Option 3: Pokemon World - Lazy Pokemon - Snorlax]Watching the Tailed Beast Ball roaring towards him, Shinji stretched out his hand,“My title as Zhongli's biggest fan wasn't earned for nothing.”