Hamuo 
Hell Mode (Manga): Volume 2 [EPUB ebook] 

Kenichi Yamada, now Allen, continues his MMORPG life in Hell Mode. As he slowly levels up, he learns just how gradual his growth is compared to others’. From obtaining new Summons and skills to fighting terrifying monsters like a murdergalsh, his life is still filled with discoveries and hardships! And when the white dragon decides to migrate after a century, his situation changes—he’s now on the hunt to gain as much XP as possible. In contrast to Allen’s determination, however, Mihai, the oldest of the Granvelle children, seems less than thrilled about shouldering his noble house’s responsibility. What emotions hide behind his seemingly fearless smile?