Multiple day luggage storage at Odawara station?

Hi everyone! I am traveling from Kyoto to Hakone in mid-January with a medium-sized luggage and a backpack. I am staying in Hakone for two nights and then continuing my journey to Tokyo, and have to take a bus to my hotel in Hakone from Odawara station. I have heard that local buses might be iffy with big bags, so I was wondering if anyone here has recently been to Odawara station and can tell me if they have either luggage lockers or other storage systems where I could leave my luggage for two nights/three calendar days? I was thinking of leaving my luggage at the station and only taking my backpack to Hakone.