Ep. 12: Chitoge and Raku discuss childhood promises and test a key on a locket
Aired on March 29, 2014

Chitoge reveals details about a boy she promised to meet ten years ago. Raku responds by admitting he made a similar promise with a girl during that same period. The two decide to test whether Chitoge’s key fits Raku’s locket. They proceed to try the key in the lock to see if it opens. The attempt leads to an unexpected outcome that leaves the result uncertain. This moment highlights the shared history and lingering connections between the characters regarding their past commitments from a decade prior.
Episodes
- Ep. 8 · Claude trains Tsugumi to uncover the truth about Raku and Chitoge's relationship.
- Ep. 9 · Raku accidentally enters the women's hot spring during a school trip and must escape before being caught.
- Ep. 10 · Students pair up for the annual Test of Courage lottery while Chitoge disappears in the woods.
- Ep. 11 · Seishirou plans a surprise birthday party for Chitoge while Raku and Onodera shop for gifts together.
- Ep. 12 · Chitoge and Raku discuss childhood promises and test a key on a locket
- Ep. 13 · Raku discovers a photograph from ten years ago featuring the girl he promised to meet.
- Ep. 14 · Raku Receives News of His Fiancée Who Arrives After Ten Years
- Ep. 15 · Marika recounts their first meeting while Raku struggles to recall details and fears her father
- Ep. 16 · Raku accepts a part-time job at Onodera's family shop during a storm