A High School Student Travels to a Different World, Starting from 0

After traveling to a different world, he lives and adventures with his friend Charlotte. In this world, time is marked by the chime of the big clock in the center of the city. The chime is not only the rhythm of daily life, but also reminds people to be alert in times of emergency. The protagonist gradually adapts to and learns magic in this world, including a dark magic called "blind magic", although the use of this magic requires constant testing and verification.