Top 6 under estimated anime protagonists you should watch
1. Demon Slayer – Tanjiro Kamado

Tanjiro was simple poor boy living in the mountain. His family has been killed by Muzan. One of his sister Nezuko became a demon. In order to protect and bring her back, Tanjiro joined Demon Slayer. What is special about Tanjiro is his forehead mark. He can use both the Water Breathing style and the origin of all breath style which is Sun Breathing style.
2. Black Clover – Asta

Asta is a magic less kid in a world of magic. He is the only one who can not use and hated by mana. He own a five leaf clover which signifies the power of a demon. He have 2 sword which are anti magic and effect to cancel and defeat demon. In his presence, magic is useless.
3. Slam Dunk – Hanamichi Sakuragi

Sakugari is the leader of a gang and drop out student. He is noob and a total beginner to basketball. However, Hanamichi proved that he genius and can do unexpected things in the court when he take it seriously.
4. Bleach – Kurosaki Ichigo

Ichigo turns Shinigami accidentally. He is a substitute Shinigami. Although, he is just a substitute shinigami through his perseverance and dedication he was able to save his friends and soul society. Who can ever forget his cool bankai with hallow?
5. One Punchman – Saitama

Saitama is the most powerful hero in the same level of Son Goku of Dragonball. However, for some reason Saitma choose not to be the hero for fame. He started in the lower rank of Hero Association but he have defeated all powerful aliens and monster without people knowing it.
6. My Hero Academia – Izuku Midoriya “Deku”

A quirkless kid who want to be the number #1 real super hero like All Might. He inherited the power of All for One.