Afraid not.Yeah, things aren't that simple. Russia needs the Kurils to maintain a strong power in the Pacific.
To say the dispute is over 'the Kurils' is inaccurate. Japan accepts the loss of the Kuril islands, except for the three southernmost islands & the small Habomai group, some of which are so close to Hokkaido that they can be seen from the coast. i.e. the 1855 border. Japan disputes that these four are part of the Kurils.
The 20 or so other islands which came under Japanese control up to 1875, were formally recognised as Japanese in 1905, & seized by the USSR in 1945 were signed away by Japan in 1951, but the USSR did not sign that treaty, & its title to any of the islands is therefore uncertain. However, nobody else claims them. Possession of those undisputed islands is enough to give Russian unfettered access to the Pacific. It doesn't need the disputed ones.
The USSR agreed in 1956 that two small islands are Japanese territory (they were not even mentioned when the border was agree in 1855, it being thought they were too obviously part of Japan to be discussed), & agreed to hand them over when a peace treaty is signed with Japan, but since neither the USSR nor Russia has ever agreed such a treaty, they remain occupied. Putin offered in 2006 to return them if Japan gave up its claim on the other, larger two.