Agent for improving or maintaining QOL

A quality of life (QOL) improving or sustaining method for a human, the method comprising a step of administering a QOL improving or sustaining agent containing Lactobacillus ONRIC b0240 (FERM BP-10065) to the human,

• wherein the QOL improvement or sustainment is at least one physical health improvement or sustainment selected from the group consisting of vitality improving, vitality sustaining, fatigue recovery, fatigue alleviating, anti-fatigue and general health improving or sustaining,
• wherein the general health improving or sustaining is measured based on a 36-Item Short Form Survey, and
• wherein the human is a healthy human who does not require treatment or an outpatient living life similar to the healthy human.