The Ultimate Healing Heals Everything!

Lars, a boy without any relatives, has been zealously practicing healing magic ever since he went through a certain traumatic experience. But even after ten years pass, he can only use "beginner level" healing magic, and is treated as unnecessary baggage by those in his village. One day, he finally works up the determination to leave for the neighboring town. There, he soon discovers there's a certain "secret" to his healing magic...?! Thus the life of "the most useless person in the village" begins to completely change in this new land! Source: Kodansha