Tenseishitara Sainou ga Atta Ken: Isekai Ittemo Doryokusuru

In a twist of fate, a diligent ronin student finds himself transported to an unfamiliar realm. This unexpected journey began when he valiantly attempted to stop a robbery alongside a female store clerk. Longing for a unique ability that he could hone through hard work, he sought the blessings of a deity. Consequently, he was endowed with two rare talents: "Innate Talent", allowing him to consistently surpass others, and "Clairvoyance", which grants him the insight to assess both individuals and objects. Yet, there's a catch; he requires thrice the standard experience to ascend in levels. Reborn as Mars, the second son of a noble viscount lineage, he remains committed to refining his abilities. However, the town's periphery shows alarming indications of an imminent monster incursion. Thus, Mars' extraordinary journey of reincarnation in this fantastical world commences. Source: MU