Kentarô Kumagai

It all began as a fighting tournament to seek out for the best fighter among all high school students in Korea. Mori Jin, a Taekwondo specialist and a high school student, soon learns that there is something much greater beneath the stage of the tournament. (Source: LINE Webtoon)

A world blanketed in an endless and ever-growing ocean of snow. The people eke out a living, either huddled around the roots of enormous trees dotting the surface, or high in the canopy, which spreads over the planet's atmosphere. (imdb)

Two unmarried workers at a travel agency hear about a branch office being opened in a distant land to be staffed by single workers, so they decide to marry each other to avoid that fate.