@Mushy because ML already investigated about MC (tho it never mentioned in manhwa that ML lead knows the truth but it's very obvious) and MC is also kind of giving him a hint that he's his first love. Hope it helps your curiosity 😉
@Nobody since you read the novel, can you please tell how lm know the diffrence between lips and fingers?does this get mentioned later on, is it because he kissed mc before or has he been with other people before?