This is the extraordinary combat skill of the 'Riding Spear' he found in the exchange hall yesterday, most suitable for use in a mounted state like on a warhorse.
On flat ground, it's somewhat unwieldy, but after changing the length of the spear, it can still be used.
Conversely, if riding a Griffin, the lance can be chosen to be longer than in the state of riding a warhorse.
This is a versatile 'Riding Spear' type extraordinary combat skill.
Soon, Rein got started with the 'Lance of Langicero,' and the system prompt sounded accordingly:
[You have trained in the Lance of Langicero, related comprehension improved!]
[Your skill Lance of Langicero has been improved, experience +3]
...
Just as Rein was learning the spear technique, suddenly, the door of the training room slowly opened, revealing a charming face, it was Anna.
"Huh? Anna, you came?" Rein was taken aback, then immediately waved with a smile and said.
"I was just about to ask about your life in Ferdinand Forest."