NamJaNun

Unlucky earthling Jinwoon has the worst luck ever. At work he is being terrorised by his boss. He has no love life and his 'family' life is a pain. His life sadly ends before he can change his ill-fate destiny.

Sung Hoon is the soon to be king of the Kingdom Namgyeong. He was raised by his single father in another kingdom. After his father's death he is brought to Namgyeong. 

After his death, Jinwoon transmigrates to an alternate universe where a mysterious being tells him to find the most powerful person on the planet. 

While Sung Hoon is told that Jinwoon is the only one who can help him save his planet. 
  
Trying to save the planet, Jinwoon (re)discovers things from his past and his new future.

How far do Jinwoon and Sung Hoon need to go to save their (new) world?

VERY VERY SLOW READ.

Tough Bride.

The soldiers tensed up while eyeing Gam but relaxed when they saw him clutch his stomach in disbelief. "What is going on?" He turned to Jinwoon. "It seems that you need food." Sung Hoon turned around while laughing. The same soldier from before turned around and left.

He returned soon with a plate of food. He set it in front of Gam. Gam stared at the food for a few seconds before he leaned over the plate. He took a smell, he spun around and looked at Jinwoon and Sung Hoon. "It smells… appetising?"

Jinwoon and Sung Hoon just gave him a smile. "Eat…" Gam turned at his plate again. "How?" He mumbled. Sung Hoon grabbed the spoon next to the plate. He spooned some food and put it against Gam's mouth.

Mouth opened his mouth like a baby. Sung Hoon brow when up. "Try it yourself." He grabbed Gam's hand before giving him the spoon. Gam tried it himself but he really looked like a baby eating himself for the first time.

Super Soldier Child