Kohei Sugihara, a college student with hearing loss, and Taichi Sagawa, his ever-optimistic former classmate, met in a chance encounter that ignited an undeniable spark that would eventually blossom into love. Summer has at last arrived, but Kohei’s job search is sapping all his free time. Taichi, now a working professional, is struggling with his role as a mentor to the office’s new hire. And life only grows more complicated when Taichi receives a sudden phone call from his estranged father.

Kohei Sugihara, college student with hearing loss, and Taichi Sagawa, his ever-optimistic former classmate, met in a chance encounter that ignited an undeniable spark that would eventually blossom into love.
Now it’s spring and as Kohei nears graduation, his search for a job begins. Meanwhile, Taichi finds himself in charge of someone new at work. Life is busier than ever, but all in all, things seem to be looking up for the pair. That is, until the sudden appearance of Ena, one of Kohei’s old flames.

Stunningly handsome Kohei Sugihara was outgoing and popular with the girls at school. But when a sudden illness left him with partial hearing loss, he grew quiet and reluctant to engage with others. At college, a chance encounter with an ever-optimistic classmate named Taichi Sagawa helped Kohei open up once more. And over time, the two began to develop feelings for each other. As the story continues, the pair tries to balance their budding relationship alongside Taichi’s inspiring new career and Kohei’s continued studies. But things don’t always go as planned. One day, seemingly out of nowhere, Kohei announces that maybe they should spend some time apart.

Kohei is a college student who, because of his hearing loss, tends to distance himself from others. His attitude starts to change after he crosses paths with an ever-optimistic classmate named Taichi. And over time, the two begin to develop feelings for each other. As the story continues, the pair tries to balance their budding relationship alongside Taichi’s inspiring new career and Kohei’s continued studies at school. But the harder they try to make things work, the more misunderstandings they seem to encounter.

“You rescued me from a world without sound. If it wasn’t for you, I never would’ve known the world was such an amazing place!”

Because of a hearing disability, university student Kohei had made a habit of distancing himself from those around him. But after meeting the exceedingly cheerful Taichi, he gradually begins to embrace a more positive outlook on life. Kohei eventually begins to see Taichi as more than a friend, and after he finally confesses his love to Taichi, the feelings become mutual.

In this new addition to the I Hear the Sunspot series, Kohei continues on as a student, while Taichi makes his way out into the working world to pursue his own calling and the two begin a new life together!

Due to the overwhelming success of I Hear the Sunspot, the sequel has finally arrived, I Hear the Sunspot: Theory of Happiness! How will this "more than friends, less than lovers" relationship evolve?

--he can't hear . . . ?

Because of a hearing disability Kohei is often alone. Taichi is outspoken and cheerful. At first, Kohei keeps himself well guarded, but after he meets Taichi he slowly learns to open up.

Because of a hearing disability, Kohei is often misunderstood and has trouble integrating into life on campus, so he learns to keep his distance. That is until he meets the outspoken and cheerful Taichi. He tells Kohei that his hearing loss is not his fault. Taichi’s words cut through Kohei’s usual defense mechanisms and open his heart. More than friends, less than lovers, their relationship changes Kohei forever.