After working at a part-time job for the first time and attending Sakuya’s birthday party, Nagi’s health took a slight toll so she’s resting in bed. Maria, Claus, Tama, & Shiranui are all out which leaves Hayate and Nagi alone in Nagi’s estate. The second half is also climactic. The original development returns; the development of the forbidden love…will it happen?
It may not look it, but you have a limitless
store of energy and I don't.
Tal vez no lo parezca, pero no tengo una 
cantidad ilimitada de energía como ustedes dos.
Não parece, mas vocês têm uma fonte 
ilimitada de energia, a qual eu não tenho.