3 months to live, wife cheats

Original Webtoon:
Cmoa, Comico

Official Translations:
Korean: Naver Webtoon, Naver Series
Others: S.Chinese, T.Chinese, Indonesian, Thai

Architect Aoi (29) and his wife Mizuki (28) three years ago

Marriage.

She was blessed with her only son, Lotus, and was living a happy life, but she was diagnosed with pancreatic cancer and was told that she only had three months to live. Aoi decides to fight the disease for his wife and children, but his beloved Mizuki is having an affair with a rich president...!?