So It's Teacher
- Title: 原来是老师啊！/ Yuan lai shi lao shi a
- English Title: So It's Teacher
- Genre: Drama, romance, school
- Episodes: 36
- Broadcast network: Hunan TV
- Broadcast period: 2021
Xiang Dongnan was once a hugely popular celebrity, until he reaches the nadir of his career and gets involved in ugly rumors. He gets tricked by his assistant and the principal of a secondary school into becoming a teacher under the guise of a fake reality show, as a plan to recover his image. When he arrives enthusiastically in class, he meets his colleagues - English teacher Su Qi and mathematics teacher Chen Liusan. Su Qi, who is stubborn and upright, does not see eye to eye with Xiang Dongnan, who is known for his celebrity demeanor. When Xiang Dongnan realises that his comeback project is a lie, he still decides to stay on to fulfill his contract term. In his bustling teaching career, Xiang Dongnan witnesses the growth journey of many students. While helping them overcome difficulties, he also finds himself again. He also finds love with Su Qi in the process and opens up a new chapter in life.