I have Been Reincarnated! - 005 – I Am Back

Ronnie, a college student with a boring life has everything around him change when his whole world is turned upside down by a woman he accidentally summons while trying to summon a magical familiar as a game.His peaceful and tranquil days are disrupted as he tries to help her fit into human society while also searching for a way to break their bond.Hell further breaks loose when he discovers that his familiar is indeed the demon queen and mysterious forces start trying to eliminate him for reasons unknown.He struggles to protect himself, adjusting to having a demon queen in his life, and understanding his growing feelings for her.

Ye Lingchen flips through the “Book of Mathematics”, then solves the world’s ten most difficult problems.

Ye Lingchen flips through the “Book of Language and Literature”, then creates the world’s ten most famous books.

Ye Lingchen flips through “The Art of Acting”, then becomes the king of the silver screen.

Ye Lingchen flips through “Military Boxing”, then becomes invincible.

Ye Lingchen flips through the “Book of Changes”, damn, he ascended to immortality…

- Description from Novelupdates

Cha Myung-jun, a sergeant who neared the end of his military service, found himself confined in the Ministry of National Defense’s bas**ent for over three decades due to his newly awakened abilities, just before the outbreak of war. Spending thirty years as the world’s most formidable blacksmith, wielding nothing but hammers, he skillfully outwits the watchful eyes of the Ministry of Defense to serve the war effort and reset the course of time. Now given a second chance at life, can he lead a successful campaign to avert humanity’s downfall and secure its salvation?