With My Junior Sister, I Finally Don't Have to Practice Hard Anymore

Lin Yi traveled to a fantasy world and planned to rely on the system to practice silently and become famous. But when the master accepted a new disciple, he discovered: Cook for junior sister and increase your cultivation! Help junior sister practice and increase her cultivation! Experience with your junior sister and increase your cultivation! ... Lin Yi: Good guy, if the system has this function, what else should I practice? This novel and its characters are purely fictitious. Any similarity is purely coincidental and should not be imitated.