Light to the Night · SEASON 1
Fantian Theorem
Episode 15 · 2026-05-03

- Crime
- Mystery
Episode overview
He Yuanhang notices Xiaohe is discouraged, so he takes out Ran's old book. When Xiaohe opens it and sees the words "Fantian Theorem" written across the page, something stirs in her. She takes the book to the principal's office and says she needs the principal's help to catch the culprit.
39 minutes
Season 1 episodes
1. The Mysterious Father and Daughter2026-04-26
2. Parting Ways2026-04-26
3. New Lead2026-04-26
4. Investigating the Xu Family2026-04-27
5. Task Force2026-04-27
6. Beat Around the Bush2026-04-28
7. Sweep Search2026-04-28
8. Split Up and Action2026-04-29
9. Handwritten Note2026-04-29
10. Waking Up2026-04-30
11. Wu Shanlong2026-05-01
12. Suspect2026-05-01
13. Evidence2026-05-02
14. Secret Investigation2026-05-02
15. Fantian Theorem2026-05-03
16. Caught Off Guard2026-05-03
17. Rescued2026-05-04
18. Back in Town2026-05-05
19. Root Cause2026-05-06
20. Back to the Start2026-05-07
21. Important Clue2026-05-08
22. Hold Yuanlongli at All Costs2026-05-09
23. Origin of the Hand Bones2026-05-10
24. Exposed2026-05-11
25. Signature Move2026-05-12
26. Criminal Detention2026-05-12
27. The Truth2026-05-12
28. The Wish2026-05-12