Series timeline in order -
1)Renai Nante Yurushimasen! (Brocon Noato x Todou)
2) Netsuai Nante Ariemasen! ( Todou revealed his past as a playboy hunter to his love Noato)
3) Dekiai nante mitomemasen (Noato &Todou starts their temporary cohabitation)
4) Renai Nante Itashimasen (Naoto's little bro's story)
5) Saiai Nante Yuzurimasen (Noato &Todou )
Saiai nante yuzurimasen/ I won't give up on my beloved!