Assimilation

Description
[You can draw out the full potential of what you ride. The higher the level, the higher the buffs while riding in battle.]

[The Low Rank Horseback Riding skill has become Lv10 and evolves into the Intermediate level. You have formed a truly deep connection with your riding companion, and gone past the union between man and horse.]

[Attuning your will with your companion and adding their strength to your own is no longer a skill but can be considered to be in the realm of magic. You have learned the Intermediate Assimilation skill. Agility and Magic has increased by 10.]

Chapter 60
Developed from Low Rank Horseback Riding into Intermediate Assimilation

Chapter 188
Developed from Intermediate into High Rank