- Romantic Byou (ロマンティック病; Romantic Illness)
- Akimoto Yasushi
- Ohashi Riko
- Other Information
- Arrangement: Wakatabe Makoto
- (Center: Tanaka Miku)
- HKT48 Team H: Tashima Meru, Tanaka Miku
- HKT48 Team H / AKB48 Team B: Yabuki Nako
- HKT48 Team KIV / AKB48 Team 4: Tomonaga Mio
- HKT48 Team TII: Matsuoka Hana
There are currently two recorded versions of "Romantic Byou" found in HKT48's discography. These versions are:
- Romantic Byou (Original)
- Found on the Theater edition of the "Kiss wa Matsu Shikanai no Deshou ka?" single as track #3.
- Romantic Byou (Instrumental)
- Found on the Theater edition of the "Kiss wa Matsu Shikanai no Deshou ka?" single as track #6. This is the standard version without the main vocals.
- STUDIO48: "Romantic Byou" lyrics