List of Ninja Saga Entities Those Have serene_mind Effect
Gaia Armor
S12 Zheninjas
Red Armed Forces Kunai (7 Days)
S63 Stormbringer
Italy (Seed)
S6 Kinjutsu: Pishamen-ryu
Golem Rock Hill Combo
Hanagara Dama
Mummy Style Clothing
Phoenix Greatsword
Vampire Suit
Super Rabbit Doll
2014 Battle Suit (Limited)
Santa Gift Bag
S75 Kinjutsu: Swallow Cut
Rose Cloak
Sliver Sword
Kinjutsu: Patriarchal Devotion