SEOUL, May 16 -- BTS vocalist Jin is back with a fresh sound - and a full heart.

The singer released his second solo EP Echo yesterday, unveiling seven tracks built around the theme of "resonance." While last year's Happy radiated upbeat energy, Echo turns inward, delving into love, reflection and moments that linger.

The spotlight track, "Don't Say You Love Me", is classic Jin: sentimental yet soothing.

The song explores the emotional limbo of a fading relationship, with his gentle vocals and soft melody delivering the biggest punch.

"I wanted a song that's easy on the ears," Jin shared in a written Q&A with The Korea Herald.

"'Don't Say You Love Me' is slower than the others, but I felt confident that it would be the most comfortab...