Morikomo

Edith is an orphaned girl who is treated coldly by her adoptive parents and sister. One day, her adoptive sister is offered a marriage proposal to Lionel, the eldest son of the Marquis of Granville, a very prestigious family. However, there is a reason for this proposal... so Edith becomes engaged to him instead of her sister."I'm sorry, I can't believe you're engaged to me like this. Can you just bear with me for one year?"Her fiancé has only one year to live, but pure love brings about a miracle in this happy love story!(Source: Palcy, translated)Original Web Novel

Even in other worlds there are keys. There are many situations where lock-opening skills are useful, such as treasure chests in dungeons, hidden doors, and prisons. A freelance locksmith, Kii Jinroku (Rock), is scouted by the Thieves' Guild in this other world. Lock, who once trained under a master locksmith, uses his own skills to open locks in the other world! Taking on the fox-eared girl Ayla from the guild as his apprentice, Lock continues to take on key requests today...

In a world where demon lords fight each other, I was born as a gargoyle. Immediately after its creation, it was mentally controlled by a demon lord, and was used as a throwaway pawn for 1,500 years. It's a life that doesn't really belong, no, it's a gargoyle life. But that all ends today...! The Demon King is dead and I am free! ! Explore this wide world with your kin! ! ! ...What?