Sozai Saishuka no Isekai Ryokouki

Takeru Kamishiro's monotonous life ends when he is sent to Madeus, a world of swords and magic caught in a repeating cycle of collapse. A divine being grants him a powerful new body, formidable magic, a bottomless storage bag, and most importantly a Search skill that can locate and appraise materials and treasure.

Rather than immediately chasing heroism, Takeru chooses to explore at his own pace, gathering whatever valuable things he finds to use or sell. With a newly hatched dragon beside him, his modest collecting trips begin affecting the people and places he encounters, quietly shifting Madeus toward a different future without Takeru ever setting out to become its savior.