Luna Haruna (春奈るな) announced new single Kimiiro Signal (君色シグナル) with tie-up as the opening theme for upcoming anime Saenai Heroine no Sodate-kata (Saekano,Saekano How to Raise a Boring Girlfriend, 冴えない彼女の育てかた). The anime features Matsuka Yoshitsugu (SAO Kirito) in the lead roll....