Koharu gets frustrated by Hiyori trying to help her so much as she's fishing and Koi celebrates her sixteenth birthday.
Happy 16th birthday!
!عيد ميلاد سادس عشر سعيد
Alles Gute zum 16. Geburtstag!
¡Felices 16 años!
Joyeux anniversaire ! 16 ans déjà !
Tanti auguri per i tuoi sedici anni!
Parabéns pelo seu aniversário de 16 anos.