“Muzan Kibutsuji! No matter where you go, you’re not getting away! I’ll follow you to the ends of Hell, and I swear I’ll slice your head with my blade! I’ll never forgive you no matter what!“ – Kamado Tanjiro

Sun Breathing is a breathing technique in Weak Legacy 2. The Sun Breathing is the ultimate Breathing techinique, all the other breathing derived from it. It was created by Yoriichi Tsugikuni. Player can learn the Sun Breathing by talking to Yoriichi NPC which is located at the top of the mountains at the middle of the map.

The Sun Breathing has 2 Versions, each having 5 forms.

Sun Breathing V1
- Dance (First Form)
- Clear Blue Sky (Second Form)
- Raging Sun (Third Form)
- Burning Bones Summer (Fourth Form)
- Hinokami (Fifth Form)
Sun Breathing V2
- Sun Thrust (First Form)
- Scorching Rush (Second Form)
- Fire Wheel (Third Form)
- Beneficent Radiance (Fourth Form)
- Dragon Sun Halo Head Dance (Fifth Form)

Obtainment

Sun Breathing V1

To learn Sun Breathing V1 you will have to talk to talk to Yoriichi NPC at the top of the mounted, which is located at the middle of the map as well as meeting certain requirements.

Requirements:
- [Level 50]
- 100,000 Yen
- Sun Soul (Drops from Tanjiro Raid Boss in Slayer HQ)

Sun Breathing V2

To learn Sun Breathing V2 you will need to have Kamado or Tsugikuni Clan and talk to Yoriichi NPC again as well as fulfilling additional requirements.