This drama is adapted from the manga of the same name and tells the story of Akiyama Sei (played by Kaito Miyachimi) and Hoshikowa (played by Aoi Wakana).) are childhood sweethearts who have been as close as family for 26 years.Sheng has been secretly in love with Xiaohe since childhood, but he hides his feelings and maintains the status quo; because Xiaohe witnessed Sheng and his lover breaking up in middle school, he was afraid that the relationship would break up, so he chose to seal his feelings for Sheng and determined to remain friends for life.

However, one night when they were 26 years old, the two spent an intimate night drunk.Sheng took this opportunity to express his secret love to Xiaohe for many years, but Xiaohe was confused and wavered because he insisted on his childhood sweetheart.Sheng hopes to take the relationship further, but Xiaohe tries his best to avoid it, and the two fall into complex emotional entanglements.