This is the long-awaited fourth installment of the "IM A SINGER" cover album series, released after approximately 3 years and 10 months. Building on the success and high sales of the previous volumes, this album showcases Toshl's unique charm as a singer. Tracklist:

• Ai wo Torimodose!! (Fist of the North Star)
• Guren no Yumiya (Attack on Titan)
• Mixed Nuts (SPY×FAMILY)
• Moonlight Densetsu (Sailor Moon)
• Tamashii no Refrain (Neon Genesis Evangelion: Death & Rebirth)
• secret base ~Kimi ga Kureta Mono~ (Anohana: The Flower We Saw That Day)
• Niji (STAND BY ME Doraemon 2)
• Buchi Kamase
• Unmei no Senkou (Original Song)
• Kirameki wa Kaze (Original Song)
• Includes a Blu-ray containing a studio live performance (piano/vocal) by Toshl and an exclusive special interview about the album.