Abstract: Crystals of the compound represented by formula (1), a method for the production thereof, and a method for producing an antibody-drug conjugate using the crystals.

Abstract: A game device includes a processor implementing a character process that performs a character control process; a game process that performs a game parameter calculation process; and a display process that displays a game image based on results of the game process. The processor implements the character process that performs a process that controls a master character that is operated by a player, and a process that controls a plurality of subordinate characters that are subordinate to the master character. The processor implements the game process that performs a process regarding a game event that involves a first subordinate character and a second subordinate character based on a first relationship parameter between the first subordinate character and the second subordinate character, a second relationship parameter between the master character and the first subordinate character, and a third relationship parameter between the master character and the second subordinate character.

Abstract: A game device includes a processor implementing a character process that performs a character control process; a game process that performs a game parameter calculation process; and a display process that displays a game image based on results of the game process. The processor implements the character process that performs a process that controls a master character that is operated by a player, and a process that controls a plurality of subordinate characters that are subordinate to the master character. The processor implements the game process that performs a process regarding a game event that involves a first subordinate character and a second subordinate character based on a first relationship parameter between the first subordinate character and the second subordinate character, a second relationship parameter between the master character and the first subordinate character, and a third relationship parameter between the master character and the second subordinate character.

Abstract: A compound represented by the following formula (I), a prodrug thereof, or a pharmaceutically acceptable salt of either. These are compounds having high DPP-IV inhibitory activity and improved in safety, nontoxicity, etc. (I) [In the formula, R1 represents hydrogen, optionally substituted alkyl, etc.; the solid line and dotted line between A1 and A2 indicate a double bond (A1=A2), etc.; A1 represents a group represented by the formula C(R2), etc.; A2 represents a group represented by the formula C(R4), etc.; R2 represents hydrogen, optionally substituted alkyl, etc.; R4 represents hydrogen, optionally substituted alkyl, etc.; R6 represents hydrogen, optionally substituted aryl, etc.; and —Y represents, e.g.; a group represented by the formula (A): (A) (wherein m1 is 0, 1, 2, or 3; and R7 is absent, or one or two R7's are present and each independently represents optionally substituted alkyl, etc.).