My Bride Is a Mermaid/Heartwarming


 * Two appear in episode 5. The first one is Masa giving a Big Brother Mentor-esque talk to Nagasumi that renews Nagasumi's drive to be with Sun. The second is Sun basically saying she'll trust her future husband after she tried to prove his innocence after he, unknown to everyone else, ran into the girls' locker room to avoid being eaten by a shark disguised as a PE teacher, said moment strengthened his love for Sun.