Passive Inheritance System for All Professions

Travel through endless planes, inherit heroic professions, and complete missions to unlock exclusive skill trees!

Well, it sounds really good... But the question is, why are all the skills on the skill tree passive? !

[Black Swordsman]: Inherited from Kazuto Kiritani in the Sword Art Online plane, you can unlock skills [One-handed Sword], [Insight], [Balance], [Dual Swords], [Quick Reflexes]

WTF? Where are my Seven Deadly Sins? Where is my Demon Sword Invasion? Where is my Starburst Air Stream Slash? Where is my Eclipse? At least give me a horizontal square slash!

(ps; current world: Danterian's bookshelf

world line; Dungeon Encounter (complete), Sword Art Online (complete), RE Zero (complete), No Game No Life (complete), Date A Live (complete), One Punch Man (complete), Black Bullet (complete),

Anohana & Charlotte (complete), Soharu (complete), Witch's Journey (complete), Blood Blockade Battle (complete), Dungeon Extra (complete), Danterian's bookshelf (in progress), Tokyo Ghoul,

Shakugan Shana, Accel World, Zero no Tsukaima, Fate, Toaru Majutsu no Index, Higurashi When They Cry, Plastic Memories, Gabriel's Fall, Spice and Wolf...to be determined)

Is there something wrong with seeking encounters in dungeons?