As the name suggests, Ichigo Daifuku Bread is a bread expression of "Ichigo Daifuku". Gyuhi is wrapped in the bread, so you can enjoy the chewy texture.
"Strawberry Daifuku Bread [Tsubuan]" is made by wrapping strawberry, fertilizer, and bean paste in bread and baking it. It is said that powdered sugar is added to the finish to express "Daifuku-ness".
On the other hand, "Ichigo Daifuku Bread [Shiroan]" is made by wrapping Gyuhito Shiroan in bread and baking it, and topped with powdered sugar. Strawberries are combined after the bread is baked so that they match the elegant and light white bean paste, and it seems that you can enjoy the fresh texture.